Originally Posted by Rdickinson
I occasionally get sewer or tank odors in the bathroom area in the back. this not a regular event. I don't have a clue as to why. I have checked all the traps and they are all full. my sewer hose is placed in a way to create a trap to prevent odors from backing up. I have replaced the vent valves on 2 pipes. I have the vacu-flush system on my coach so the odors don't emanate from the toilets as it is under negative pressure all the time. My vent pipes are free of any debris ans bug nests etc. any thoughts would be appreciated?
I think what will help you is the same thing that helped us. On top of your RV is a GAS pipe vent with a flat cap. Look for a screw and remove the cap vent. Now the only place thing I have seen was what looks link a sharks fin and rotates 360-degrees with the direction of the passing wind currents. The pipe is standard inside and the shark's fin fits and a screw to keep it in place and on the pipe.
Understand stopped or moving the wind passing by the vent keep the open part downwind and creates a suction, thereby pulling all gases from the septic tank out and into the air above the rv. very cool wish i created it.